Two 5.0s, what didn't you like about your MCS and what year was it? I've had my '14 MCS since April of 2014 and like it a lot. Haven't done much to it except change the chrome trim to black trim and replacing the shifter knob, and most important getting a tune to bump wheel power/torque to 225/247. It's actually a blast to drive. I do, though, wish it had more utility space for the occasional trip to Home Depot or Costco. ;-)